I remember doing this lesson, not so much the tools. If you check the lesson enough you'll find the tools and after that you just fib your way through it. Would you like me to walk you through finding the tools?
Answer:
c. because the text follows the history of smallpox from its beginning to its eradication, or end
Explanation:
The text is organized in chronological order, going from when smallpox first started to when vaccination replaced variolation. The beginning helps provide evidence and support for how Jenner helped to spread immunization.